VW Buzz Life 204HK constantly loses contact with the app

After the latest update, I find that our VW Buzz Life 204HK constantly loses contact with the app in intervals of 3-5 minutes. On the car's screen there is a green contact for 3-5 minutes, after which it turns red for 3-5 minutes. During the red period, a difference of 2-5% occurs in relation to the car's actual battery level, and when there is a green level again, it must constantly change the battery level upon arrival. Before the update there was always a green contact 🤔